At Boscabell in County Tipperary, excavations carried out ahead of the N8 Cashel Bypass and the N74 Link Road brought to light a site that had left no trace above the surface whatsoever: no earthwork, no visible feature, nothing to suggest that anything of interest lay beneath the fields. What emerged instead was a D-shaped enclosure roughly 30 metres by 23 metres, defined not by a bank but solely by a V-shaped fosse, a rock-cut or earth-cut ditch, that grew shallower as it neared a wetland area to the south-east. The northern entrance was marked by a causeway about two and a half metres wide, and the eastern end of the ditch had at some point been recut and shifted slightly northward, suggesting the enclosure had been modified or maintained over time.

What gives the site its particular character is what was found inside and around that enclosure. Near the centre lay a small oval pit filled with charcoal-flecked silty clay and several fragments of cremated bone. Across the interior and beyond the fosse, a scatter of further pits turned up similar material: charcoal-flecked fills, traces of oxidised clay, burnt bone. Some of the pits were tiny, less than a third of a metre across; others were considerably larger and in at least one case a later, bigger pit had been cut directly into an earlier one, overwriting it. Stake-holes and post-holes appeared at various points around the enclosure's edges, hinting at lightweight timber structures, though their arrangement does not resolve neatly into a recognisable building plan. The recurrent presence of fire, burnt bone, and charcoal throughout the fills points toward activity that was, at the very least, ceremonial or funerary in nature, though the site resists easy classification. Enclosures of this kind, defined by a ditch alone with no accompanying bank, are relatively unusual in the Irish record, and the combination of cremated remains scattered across multiple pits rather than concentrated in a single deposit adds to the sense that this was a place used in ways that do not map straightforwardly onto better-known site types.